Home / 18,670.48-28,006.74-7,575.52

Finding the Fourth Proportional to 18,670.48, 28,006.74 and 7,575.52

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Solution

The fourth proportional to 18,670.48, 28,006.74 and 7,575.52 is: 11,363.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,670.48 : 28,006.74 = 7,575.52 : x
  2. Step 2: Convert to fraction form
    18,670.48/28,006.74 = 7,575.52/x
  3. Step 3: Cross multiply
    18,670.48x = 28,006.74 × 7,575.52
  4. Step 4: Simplify right side
    18,670.48x = 212,165,619.00
  5. Step 5: Solve for x
    x = 212,165,619.00/18,670.48
  6. Step 6: Final answer
    x = 11,363.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.